Drive-gearing.



No. 773,362 PATENTED 001". 25, 1904. A. ANDERSON.

DRIVE GEARING.

APPLIQATION FILED MAR, 14,1904.

N0 MODEL fif red/fflde man. I 7

UNITED STATES- Patented October 25, 19.04.

PATENT Trice.

ALFRED ANDERSON, OF DETROIT CITY, MINNESOTA, ASSIGNOR OF THREE- FOURTHS TO ASAHEL G. WVEDGE, H'ALVOR RASMUSSON, AND PETER K. HASLERUD, OF DETROIT CITY, MINNESOTA.

DRlVE-GEARING.

SPECIFICATION forming part of Letters Patent No. 773,362, dated October 25, 1904:.

Application filed March .14, 1904. Serial No. 198,138. (No model.) i

City, in the county of Becker and State of Min nesota, have invented certain new and useful Improvements in Drive-Gearings, of whichv the following is a specification.

This invention has for itsobject to materially reduce friction, lessen the wear, and save IO power in heavy-running machinery embody ing coggearing as the power-transmitting means.

The invention is primarily designed to provide gearing for agricultural machinerysuch I5 as harvesters, binders, threshers, mowers, separators, and the likewhereby a material sav ing is produced. Obviously the gearing may be used in other connections where power is transmitted through cog-wheels.

For a full description of the invention and the merits thereof and also to acquire a knowledge of the details of construction of the means for effecting the result reference is to be had to the following description and draw- 5 ings hereto attached.

"hile the essential and characteristic features of the invention are susceptible of modification, still the preferred embodiment of the invention is illustrated in the accompanying 3 drawings, in which Figure l is a detail perspective view of a portion of the framework of a harvester or like agricultural machine, illustrating the application of the invention. Fig. 2 is a detail view of the gear-wheel provided with rollercogs and a portion of the intermeshing gearwheel comprising spaced members and connecting-pins, the latter constituting cogs for cooperation with the roller-cogs of the inter- 4 meshing gear-wheel. Fig. 3 is a section of the parts shown in Fig. 2 on the line X X.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

As shown in the drawings, the gearing comprises f e gear-wheels 1 and 2, the gear-wheel 1 being provided with roller-cogs 3 and the gear-wheel 2 withpins 4:, forming cog ele, ments for intermeshing with "the roller-cogs 5 3 .inthe operation of the gear-wheels. In order-to distinguish the gear-wheels, they will be designated by the terms -roller cog-wheel and pin cog-wheel, the first being designated by the reference-numeral 1 and the lat- 5 5 ter by the numeral 2.

The pin cog-wheel 2 comprises spaced rings or members 5, and the pins I connect them at regular intervals and are spaced apart a distance corresponding approximately to the diameter of the roller-cogs 3. Arms 6 connect the rings 5 with the hub 7, which latter is secured to theaXle or shaft 8, which in the present instance is the recipient of the power and has the ground or drive wheel 9 mounted 6 5 thereon. The pin cog-wheel 2 is many times the diameter of the roller cog-wheel, whereby the latter is speeded in the operation of the gearing. The pins 4 connect the rings or members 5 and are secured thereto in any substantial manner, so as to provide, in effect, a rigid structure.

The roller cog-wheel l is secured to a shaft 10 and is preferably composed of spaced plates 11, block 12, arranged between the plates and 7 5 mounted upon the shaft 10, and the rollercogs 3, mounted in points or projections of the plates 11, whereby ample clearance is had for the entrance of the pin-cogsi between the roller-cogs 3 in the operation of the gearing.

In the operation of the gearing the pin-cogs i intermesh in successive order with the rollercogs 3, and as the pins come into engagement with the roller-cogs the latter are rotated upon their aXes in one direction, and as the pin-cogs 8 5 leave said roller-cogs the latter are rotated upon their axes in a reverse direction, with the result that the friction between the cog elements of the roller and pin cog-wheels is reduced to the smallest amount possible and 9 the gearing made extremely light running, which is of special advantage in heavy and. cumbersome machinery, such as generally employed in the field or agricultural pursuits.

Having thus described the invention, what With the pins of the first-mentioned cog- [O is claimed as new is wheel, substantially as specified.

In drive-gearing, the combination of a pin In testimony whereof I efiix my signature in cog-vi'heel and a companion cog-wheel c1ompresence of two Witnesses. posec of snaced plates havin coi'i'esponc ing projection s, a block arranged between said ALFRED ANDERSON plates for properly spacing them, and roller- Witnesses: cogs journaled between the projecting p01- FRANK RICHARDSON, tions of said plates and adapted to intermesh CHAS. G. STURTEVANT. 

